The author gives a brief introduction to the National Cryptologic Museum,
calling it "a very professional and polished exhibition of cryptologic
artifacts," followed by 16 black-and-white photographs of exhibits.

Lowenthal calls this article a "[f]resh, well-researched look at one of the most famous incidents ... in U.S. intelligence history." Similarly, Sexton sees
it as a "thorough examination of the circumstances and reasons for
Secretary Stimson's withdrawal of State Department support of Yardley's
Black Chamber."